Sealing the fissure of the teeth is a procedure aimed at sealing the recesses located on the chewing teeth and designed to better grind food when eating. Due to its narrowness and small depth, the fissures are difficult to clean, and become a place for the development of bacteria, as a result of which caries can form.
This procedure can be performed on both milk and permanent teeth, because the appearance of fissure caries can occur at any age. The main indicator for sealing is deep pits and indentations, which are difficult to access in a traditional way.
- The presence of intact wide fissures.
- The appearance of caries of a frontal appearance.
- On fissures more than four years did not appear carious formations.
- Inadequate oral hygiene.
Types of methods and sealant
The main purpose of sealing the recesses is to prevent infection from entering the inside of the tooth enamel. There are two sealing methods used depending on the type of recesses:
- Invasive. It is used if the fissures are deep and narrow (closed type), and their bottom is not visually visible. To open them, a drill is used in order to expand them and translate into an open type.
- Non-invasive. It is used if the fissures are open and well visible.
For sealing, special sealants are used, consisting of composite resins with a light or chemical curing method and sodium fluoride. The mineralization process will operate for a year or more, after passing the service.
Fissure sealing in children
In young children, such a procedure is especially important. Milk teeth have low mineralization, because their tooth enamel is just beginning to form, so the risk of caries will be greater than in adults. To prevent this, the first examinations for prophylaxis, as well as sealing, should be done six months after the appearance of the tooth, the created effect will remain for 1-2 years, which will help to avoid the wrong bite to which the extracted teeth lead.
- In the beginning, the tooth is thoroughly cleaned of food debris using a circular brush.
- Isolate it from saliva with cotton rolls and dry the treated part of the surface well.
- The prepared area is treated with 35 – 37% phosphoric acid (for better sealant fixation), then it is washed off and dried thoroughly.
- Re-isolate the tooth, apply a thin layer of liquid sealant using a special syringe and distribute throughout the area, remove excess.
- The silant is fixed with a light curing lamp.
- At the end, the tooth is polished and ground on its chewing surface